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11kV Prefabricated Packaged Substation , Combined Substation

Structure characteristic:

This product has the advantages of smaller volume,compact structure,high heat insulation and ventilation function,dust-proof,prevent small animal to enter,moist-proof,beautiful appearance and convenient to maintenance, we can choose cold-rolled steel plate,compound color plate and other material to make up enclosure.
All the black material of substation are taken surface anticorrosive treatment, it will guarantee that product will be not corroded for a long time.
HV side use HXGN26-12(F), with complete operation mistake prevention function.

Main technical parameters

Technical data of HXGN26-12(F) RMU (equipped with FN26-12 SF6 Load Switch), see table 1
Table 1

Items	Unit	Parameter
Rated voltage	kV	12
Rated frequency	Hz	50
Rated current of main busbar	A	630
Rated short time withstand current of main circuit and earth circuit	kA/s	25/2
Rated peak withstand current of main circuit and earth circuit	kA	63
Rated short circuit making current of main circuit and earth circuit	kA	50
Full capacity breaking times of load switch	Times	100
Fuse breaking current	kA	31.5 40
Mechanical endurance	Times	10000
1 min power frequency withstand voltage (r.m.s) phase to earth,between phase/ isolating distance	kV	42/48
Lighting impulse withstand voltage(peak) phase to earth,between phase/ isolating distance	kV	75/85
Secondary circuit 1 min power frequency withstand voltage	kV	2

Technical data of FN26-12 SF6 Load Switch, see table 2
Table 2

Items	Unit	Parameter
Rated voltage	kV	12
Rated current	A	630
Rated frequency	Hz	50
1 min power frequency withstand voltage (r.m.s) phase to earth,between phase/ isolating distance	kV	42/48
Lighting impulse withstand voltage(peak) phase to earth,between phase/ isolating distance	kV	75/85
Rated short time withstand current	kA/s	25/2
Rated peak withstand current	kA	63
Rated short circuit making current	kA	50
Rated active load breaking current	A/times	630/100
Rated cable charging current	A	10
Rated un-load transformer breaking current		1600KVA transformer un-load current
Main circuit resistance	µΩ	≤85
Rated SF6 gas pressure (in 20ºC)	Mpa	0.04
Mechanical endurance	Times	10000

Switch parameter on the LV side
Main switch adopts TANW1,MT series, shunt switch adopts TANM1,NSX series, see table 3
Table 3

Type	Limit short circuit breaking capacity Icu (400V) KA	Running short circuit breaking capacity Ics (400V) KA
TANW1-2000	80	50
MT08N1	42	42
MT10N1	42	42
MT12N1	42	42
MT20	65	65
TANM1-100S	35	17.5
TANM1-225S	35	17.5
TANM-400S	50	25
TANM-630S	50	25
TANM1-800S	75	50
NSX-100N	50	50
NSX-250N	50	50
NSX-400N	50	50
NSX-630N	50	50

Structure and appearance:

1. Substation base plate and supporting structure adopt U-steel and angle steel, it has higher mechanical intensity, enclosure adopts cold-rolled steel plate or compound color plate. It has beautiful appearance that there are no threaded connection or rivet connection from the exposed surface.
2. Use clapboard to divide into independent room between each room of substation.
3. In order to observe and maintain, LV room and HV room have lighting device.
4. Reversible connecting parts of substation adopt rubber belt to seal, with good damp-proof capacity.
5. HV room is equipped with HXGN26-12(F) RMU, and also with SF6 load switch,fuse(adopts circuit breaker,lighting arrester,earth switch and mechanical interlock device if it required,.

6. If adopts HV measuring, it is also equipped with voltage transformer,current transformer and measuring meter.
7. Each LV elements in LV room should be frontal arranged.

8.Instrument room on the top, it has observing window on the front. each element has independent and removable plate,can be convenient to maintain.
According to the requirement of reactive compensation, it should be equipped electric device, its capacity is 15~20% of transformer.

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Categories	Compact Transformer Substation
Brand Name:	Tianan Electric
Model Number:	ZBW20(JBW)-12
Certification:	CCC/ ISO9001
Place of Origin:	CHINA
Capacity:	30—1600kVA
High voltage:	12KV
Low voltage:	400V
HV units:	SF6 RMU
Shell Material:	Aluminum Alloy